condition mean min max 2 h after light 1.0069158333333335 0.0 1.68738 6 h after light 1.46383 0.72785 2.18293 10 h after light 0.5018011666666666 0.0 1.19825 14 h after light 0.727759 0.0 1.33014 18 h after light 0.9174458333333333 0.0 1.46321 2 h after dark 0.201259 0.0 0.571523